<template>
  <div class="register-container">
    <el-form ref="registerForm" :model="registerForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">

      <div class="title-container">
        <h3 class="title">用户注册</h3>
      </div>

      <el-form-item prop="username">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          ref="username"
          v-model="registerForm.username"
          placeholder="Username"
          name="username"
          type="text"
          tabindex="1"
          auto-complete="on"
        />
      </el-form-item>

      <el-form-item prop="email">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          ref="email"
          v-model="registerForm.email"
          placeholder="Email"
          name="email"
          type="text"
          tabindex="2"
          auto-complete="on"
        />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :key="passwordType"
          ref="password"
          v-model="registerForm.password"
          :type="passwordType"
          placeholder="Password"
          name="password"
          tabindex="3"
          auto-complete="on"
          @keyup.enter.native="handleRegister"
        />
        <span class="show-pwd" @click="showPwd">
          <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
        </span>
      </el-form-item>

      <el-form-item prop="repassword">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :key="repasswordType"
          ref="repassword"
          v-model="registerForm.repassword"
          :type="passwordType"
          placeholder="Repeat password"
          name="repassword"
          tabindex="4"
          auto-complete="on"
          @keyup.enter.native="handleRegister"
        />
        <span class="show-pwd" @click="showRePwd">
          <svg-icon :icon-class="repasswordType === 'password' ? 'eye' : 'eye-open'" />
        </span>
      </el-form-item>

      <el-link href="/#/login" type="primary">已有账号，直接登录</el-link>
      <br>

      <el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;" @click.native.prevent="handleRegister">注 册</el-button>

    </el-form>
  </div>
</template>

<script>
import { validUsername,validPassword,validEmail } from '@/utils/validate'
import { register } from '@/api/user.js'

export default {
  name: 'register',
  data() {
    const validateUsername = (rule, value, callback) => {
      if (!validUsername(value)) {
        callback(new Error('请重新输入用户名，不少于4个字符'))
      } else {
        callback()
      }
    }
    const validatePassword = (rule, value, callback) => {
      if (!validPassword(value)) {
        callback(new Error('请重新输入密码，不少于6个字符'))
      } else {
        callback()
      }
    }

    const validateEmail = (rule, value, callback) => {
      if (!value) {
        callback(new Error('请输入正确的邮箱格式'))
      }
      if (!validEmail(value)) {
        callback(new Error('邮箱格式错误, 请重新输入'))
      } else {
        callback()
      }
    }

    return {
      registerForm: {
        username: '',
        email: '',
        password: '',
        repassword: ''
      },
      loginRules: {
        username: [{ required: true, trigger: 'blur', validator: validateUsername }],
        email: [{ required: true, trigger: 'blur', validator: validateEmail }],
        password: [{ required: true, trigger: 'blur', validator: validatePassword }],
        repassword: [{ required: true, trigger: 'blur', validator: validatePassword }]
      },
      loading: false,
      passwordType: 'password',
      repasswordType: 'password',
      redirect: undefined
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  methods: {
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    showRePwd() {
      if (this.repasswordType === 'password') {
        this.repasswordType = ''
      } else {
        this.repasswordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.repassword.focus()
      })
    },
    handleRegister() {
      // this.loading = true
      // this.$router.push({ path: this.redirect || '/' })
      // this.loading = false
      if (this.registerForm.password === this.registerForm.repassword) {
        this.$refs.registerForm.validate(valid => {
          let Base64 = require('js-base64').Base64;
          var params = {
            'username': this.registerForm['username'],
            'email': this.registerForm['email'],
            'password': Base64.encode(this.registerForm['password']),
            'repassword': Base64.encode(this.registerForm['repassword'])
          }
          if (valid) {
            register(params).then(response => {
              if (response.status === '000000') return
              this.$message.success('注册成功，可以登录啦！')
              this.$router.replace(`/login`)
            })
            this.loading = false
          } else {
            this.$message.error(`填写信息不正确，请检查`)
            return false
          }
        })
      } else {
        this.$message.error(`两次提交的密码不一致`)
      }
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg:#283443;
$light_gray:#fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .register-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.register-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg:#2d3a4b;
$dark_gray:#889aa4;
$light_gray:#eee;

.register-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
